Linear Technology LTC1391CN Multiplexer

The LTC1391CN is a high-performance, 8-channel analog multiplexer from Linear Technology, which is now part of Analog Devices. This versatile integrated circuit (IC) allows for the selection of one of eight single-ended inputs to a single output, making it an ideal choice for data acquisition systems, test equipment, and multipoint monitoring applications where space and power efficiency are critical.

Constructed with CMOS technology, the LTC1391CN offers low power dissipation and a single supply operation ranging from 5V to 16.5V, or dual supplies of ±5V to ±8V. The device boasts a low ON resistance of 125 ohms, which ensures minimal signal attenuation, and a charge injection of only 5pC, which is beneficial for precision applications. This multiplexer also features a fast switching time, with a typical transition time of 250ns, allowing for rapid signal routing and data acquisition.

The LTC1391CN's design includes break-before-make switching, which prevents momentary shorting of channels during transition. Additionally, the IC features an inhibit input that allows all channels to be disconnected simultaneously, providing an extra layer of control for the user. Its digital inputs are both TTL and CMOS compatible, offering flexibility in interfacing with various logic levels.

Encased in a 16-pin narrow DIP package, the LTC1391CN is designed for easy integration into a wide range of systems. It also operates over an extended temperature range of 0°C to 70°C, ensuring reliable performance across various environmental conditions.

For designers and engineers seeking a reliable and efficient way to manage multiple analog signals, the LTC1391CN presents a compact and cost-effective solution. Its combination of low power consumption, high-speed operation, and robust feature set make it a standout choice for designing flexible and high-performing electronic systems.

Key Features:

• 8-Channel Single-Ended Analog Multiplexer
• Low ON Resistance: 125 Ohms
• Low Charge Injection: 5pC
• Single or Dual Supply Operation
• Fast Switching Time: 250ns
• Break-Before-Make Switching
• Inhibit Input for All Channels Off
• TTL/CMOS Compatible Digital Inputs
• Extended Operating Temperature Range: 0°C to 70°C
• 16-Pin Narrow DIP Package